A.when at anchor
B.only when making way
C.at any time when underway
D.only when the identifying lights are not being shown
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A.aground
B.at anchor
C.not under command
D.being towed
A.average wind conditions
B.tidal currents
C.magnetic variation
D.average limits of field ice
A.B flammable liquid
B.C flammable liquid
C.D combustible liquid
D.E combustible liquid
A.should always be immediately corrected
B.will always cause a vessel to capsize
C.always results from off-center weights
D.All of the above are correct
A.can use radar information from one object to fix the position
B.should never use radar bearings
C.should only use radar bearings when the range exceeds the distance to the horizon
D.must use information from targets forward of the beam
最新試題
An inflatable liferaft is hand-launched by（）.
Mariners not entering the port are（）to keep at least one mile off.
Of the following，（）is not likely found in The Mariners Handbook.
A sweep oar is an oar that is（）.
The program of graphical predictions of height against time for a period of up to seven consecutive days is contained in（）.
After being rescued from the vessel accident，the people agreed that they had much to（）.
Important changes to charts and lights（including temporary ones），radio signals and sailing directions are listed in（）.
Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.
For details of these and other lights the larger scale charts and Admiralty Lists should be （）.
After launching，an inflatable raft should be kept dry inside by（）.